ARCO Marine's Tech Tip on Engine Rotation

 

TECH TIP ON ENGINE ROTATION

WHAT IS MY ENGINE ROTATION?

Engine rotation is determined by the direction of the flywheel.

Most I/O engines are LEFT HAND rotation. Do not rely on the rotation of the propeller rotation to determine the engine rotation. 

 

LEFT HAND ROTATION

If the flywheel turns counter-clockwise:

Flywheel Counter-Clockwise

Belts turn clockwise.

Belts Clockwise

This is standard rotation.

 

RIGHT HAND ROTATION

If the flywheel turns clockwise:

Belts turn counter-clockwise. 

 

Visit our rotating electric parts categories here:

Outboard Starters

Inboard Starters

Tilt Trim Motors

Alternators

You can download our full Engine Rotation Tips HERE, or view all of our Tech Tips at our Landing Page

Visit the ARCO Marine YouTube Channel HERE.